Water-closet ventilator



W. M. WATKINS ET AL.

WATER CLOSET VENTILATOR Filed Feb. 15, 1927 Patented idea a, less.

new a a it s dill head M .1 w a an oil i as p I a ay i I WILLIAM M. WATKINS AND G. FINLEY, O1 LONG BEACH, CALIFORNIA.

warns-crested vnnrinatron.

Application med man- 15,19227. Serial no. 163,394.

The present invention is directed to improvements in water closet ventilators.

The primary object of the invention is to provide simple and efficient means operable to withdraw or remove foul gases or objectionable odors from the closet bowl to maintain the same in a constant state of ventilation.

A further object oi. the invention. is to provide a device oi. this character so constructed as to be automatically placed in operation when the closet seat is occupied and main tained in an inoperative state when the seat is unoccupied.

A further object of the invention is to provide a device of this character constructed in such manner that the ventilating unit is supplied with water under pressure the passage of water serving to withdraw gases from the bowl.

In the accompanying drawing:

Figure 1 is a vertical longitudinal sectional view through the device.

Figure 2 is a detail transveri-ie sectional view, the ventilating duct being indicated in dotted lines.

Figure 3 a fragmentary top plan view.

Referring to the drawing, 1 designates a bowl of conventional shape and formed with the usual trap 2 and hollow flush water rim 3.

The bowl is provided with a curved conduit l which nds under the trap 2 and s upper or intake end provided wit} a res rie ed duct 5. The lower or outlet end oi the conduit opens adjacent the discharge passage 6 said iiassage being normally sealed by the flush water in the bowl. This passage, as customary, communicates with the neck '7 which fits into a sewer pipe, not shown, and into which the contents of: the bowl is di charged.

. Formed in the rear wall 01" the bowl and so located as not to interfere with the entrance of tlush water is an open-sided chamber 8, the open side of which communicates with the interior of the bowl at a point above the water line thereof.

'lhe bottom of the chamber in comn'iunication witl the upper end of the duct in order that gases from the bowl can be drawn therefrom into the conduit 4t in a manner to be hereinafter explained.

Formed in the rear wall of the bowl immediately above the chamber 8 is a recess 9 into which is fitted. a valve casing 10 provided with an annular chamber 11, the base of which is formed with a valve seat 12 normally closed by the cylindrical valve 13".

T 1e valve 13 has its stem 1 1 slidably mounted in the vertically spaced packing glands 15 and 16 threaded in the chamber 11. Surrounding said stem and having' its lower ter minal restingupon the gland 16 is a coil spring 17. The lower end of the spring 17 rests upon the gland 16. The upper end of the stem 14. extends a short distance above the gland 1.).

Seated in the top wall of the chamber 8 is the lower end of the injector nozzle 18, said nozzle having its upper end fitted in the seat 7 12, while the lower end thereof is positioned adjacent the-entrance end of the duct 5. It is through this nozzle that the water is injected into said duct to create a suction there in to draw gases from the bowl. In order to conduct water to the nozzle 18 a. pipe 19 is employed the inner end of which extends through the rear wall of the bowl and is fitted in the valve casing; 10, water to the pipe being furnished from a suitable source.

A seat 20 is pivotally connected to the how]. by a hinge unit 21 having an angle arm 22 fixed thereto, said arm having its rear end provided with spaced fingers 23 upon which rests the cross pin 2 lcarried by the extended. end of the stem 1 1. Tl'ie seat 520 has springs 25 carried thereby which serve to normally hold the seat in a raised position and at which time the valve 13 is seated, and itwill be ob vious that when the seat is occupied. the valve 13 will be unseated.

Briefly, the operation is as follows l Vhcn the seat 20 is occupied the valve 1.3 unseated and water from the pipe 19 will pass into the nozzle 18 and will be discharged therefrom into the restricted duct 5 in jet form. The column of water passing through the conduit 1 will create a vacuum in the chamber 8 and bowl, thereby drawing the gases from the bowl and through the duct 5 to be discharged into the passage 6. and from thence into the sewer pipe. The supply of water to the nozzle will be stopped when the seat is unoccupied, and at which time the spring 17 holds the valve 13 positively seated.

In order that any water which passes through the gland 16 may be returned to the chamber 8, and thence to the bowl 1 a drain duct 26 is provided, clearly shown in Fig ureih i i v Having thus described the invention, We claim: a

A Water closet bowl having a discharge passage and a conduit said bowl having a recess formed therein, a valve easing mounted in the recess and having a seat in its lower .end, a Water supply pipe communicating with the casing above the seat, a valve cooperating with the seat, and normally cutting off the supply of ater from the said pipe to thesea't, said bowl having a chamber therein opening into the interlor of the bowl,- an injector nozzle fitted in the seat and extended into the chamber, said nozzle servin to discharge Water into the conduit when t 1e valve is unseated, to draw air from the bowl into the chamber for discharge into the conduit and a second conduit connecting the chamber and recess;

In testimony whereof We afiix our signatures.

WILLIAM M. WATKINS. 

